An important part of every research is the test of the validity and the reliability of the research instruments.

每一个研究的一个重要组成部分，是研究工具的有效性和可靠性的考验。

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The research instruments included questionnaires, follow-up questionnaires, interviews, and classroom observation.

研究工具包括问卷、后续问卷、访谈和课堂观察。

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Scientific research instruments are the important supporting conditions for researching and teaching activities in universities.

高校教学科研仪器设备是高校教学、科研工作的重要支撑条件。

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In his research paper, Hubble said the issue could be decided only by more powerful instruments.

VOA: special.2009.04.29

But it carried a great many electronic instruments for scientific research.

VOA: special.2009.06.10

But it would contain many tiny electronic instruments for scientific research.

VOA: special.2009.06.10

Flying at just below 10, 000 feet, research instruments identified three distinct layers of volcanic residue.

BBC: Flight ban 'not over-reacting' say Wiltshire scientists

The ships, which regularly plied various routes in the North Atlantic during 2005, were kitted out by a number of European research organisations with instruments that measured the CO2 content of water taken into the engine rooms and air collected upwind of the funnels.

ECONOMIST: Climate change: What lies beneath | The

Under the Affordable Care Act, beginning January 1st, sales of medical devices from implants to MRIs, research equipment and surgical instruments bear a 2.3 percent tax.

FORBES: Obamacare Will Stifle Healthcare Innovation, Making It A Real Pain